@TerryAL Hi welcome to the forum.
The “zoom” tool is actually part of the “hand” tool as in grabbing. When using the hand tool you can right click on the canvas to zoom.
You can also use the shortcuts CTRL + SPACEBAR while using your drawing tools and it will temporarily switch to the zoom mode.
Also you can use the CTRL + UP ARROW to zoom in / CTRL + DOWN ARROW to zoom out
If you’re in doubt always look at the top bar menus, they have all the important functions with their corresponding shortcuts.
Also you can remap these shortcuts by going to Edit > Preferences > Shortcuts 